Table 5. Number of private sector establishments by age

Mining, Quarrying, and Oil and Gas Extraction

Age Class                 March 1994      March 1995      March 1996      March 1997      March 1998      March 1999

Less than one year             1,863           2,062           1,816           2,160           1,999           1,609
1 year                             _           1,445           1,590           1,432           1,693           1,468
2 years                            _               _           1,182           1,389           1,239           1,409
3 years                            _               _               _           1,083           1,244           1,006
4 years                            _               _               _               _             975           1,071
5 years                            _               _               _               _               _             845
6 years                            _               _               _               _               _               _
7 years                            _               _               _               _               _               _
8 years                            _               _               _               _               _               _
9 years                            _               _               _               _               _               _
10 years                           _               _               _               _               _               _
11 years                           _               _               _               _               _               _
12 years                           _               _               _               _               _               _
13 years                           _               _               _               _               _               _
14 years                           _               _               _               _               _               _
15 years                           _               _               _               _               _               _
16 years                           _               _               _               _               _               _
17 years                           _               _               _               _               _               _
Born before March 1993        22,423          20,379          18,771          17,512          16,461          15,023
Total                         24,286          23,886          23,359          23,576          23,611          22,431
 
Age Class                 March 2000      March 2001      March 2002      March 2003      March 2004      March 2005

Less than one year             1,700           1,835           1,950           1,564           1,719           1,970
1 year                         1,289           1,370           1,521           1,548           1,343           1,503
2 years                        1,203           1,185           1,202           1,291           1,332           1,189
3 years                        1,221           1,078           1,044           1,042           1,185           1,218
4 years                          905           1,096             950             835             951           1,127
5 years                          965             826             978             853             793             885
6 years                          784             869             730             907             794             731
7 years                            _             731             804             679             850             746
8 years                            _               _             671             726             628             803
9 years                            _               _               _             647             702             575
10 years                           _               _               _               _             609             666
11 years                           _               _               _               _               _             573
12 years                           _               _               _               _               _               _
13 years                           _               _               _               _               _               _
14 years                           _               _               _               _               _               _
15 years                           _               _               _               _               _               _
16 years                           _               _               _               _               _               _
17 years                           _               _               _               _               _               _
Born before March 1993        14,016          13,236          12,472          11,708          11,344          10,996
Total                         22,083          22,226          22,322          21,800          22,250          22,982
 
Age Class                 March 2006      March 2007      March 2008      March 2009      March 2010      March 2011

Less than one year             2,398           2,800           2,669           2,563           2,001           2,433
1 year                         1,746           2,025           2,353           2,140           2,002           1,627
2 years                        1,363           1,539           1,769           1,987           1,777           1,783
3 years                        1,081           1,264           1,398           1,567           1,705           1,592
4 years                        1,121             989           1,175           1,253           1,341           1,551
5 years                        1,049           1,041             906           1,070           1,140           1,277
6 years                          822             992             977             840             984           1,040
7 years                          705             792             947             903             775             902
8 years                          704             662             756             897             861             744
9 years                          740             651             649             725             832             788
10 years                         546             705             622             608             677             774
11 years                         637             523             672             590             580             661
12 years                         554             602             499             634             565             576
13 years                           _             530             582             483             597             557
14 years                           _               _             503             544             463             568
15 years                           _               _               _             489             518             454
16 years                           _               _               _               _             483             501
17 years                           _               _               _               _               _             457
Born before March 1993        10,683          10,323          10,041           9,729           9,431           9,188
Total                         24,149          25,438          26,518          27,022          26,732          27,473
 
NOTE: A '_' indicates that the data are not available and a 'N' indicates that the data do not meet BLS disclosure standards.